baber/WOPTO huggingface dataset:
Patent DE-3917523-A1 (DE)
Inventor: BECK ERICH DIPL ING
IPC: B29C48/395
Filed: 1989-05-30
Abstract: To obtain the adjustment of the temperature of a plasticised synthetic material whith the least possible inertia and a simultaneous constant throughput, a combination of a gently acting extrusion worm (12) and a gear-type force-pump (20) downstream thereof is proposed. The rotation speeds of the extrusion worm (12) and the pump (20) may be adjusted mutually independently. Owing to its gentle conveying characteristic, the conveying effect and hence the specific power conversion of the worm depends very considerably upon the driving speed. Thus the worm pressure cycle over the entire revolution range remains at a low level beneath the maximum permissible pump pressure. The temperature of the compound at the worm outlet therefore follows the rotation speed and use is made of the speed adjustment to regulate the temperature. The throughput is governed by the rotation speed of the force pump so that this operating parameter may be controlled by adjusting the pump speed. A density/slippage compensation system prevents any throughput instability with changing compound temperature.
Patent DE-3923249-A1 (DE)
Inventor: MUELLER MICHAEL DIPL CHEM DR
IPC: C10L1/18
Filed: 1989-07-14
Abstract: The invention relates to mineral oils and mineral oil products of improved flow behaviour, from the group of crude oils, vacuum gas oils or residual oils, having a content of long-chain polyalkyl (meth)acrylates, the long-chain polyalkyl (meth)acrylates representing a mixture of   A) a polyalkyl (meth)acrylate P1 having crystallisation starting temperatures above 15 degrees C (measured as the cloud point of a 0.1 % solution in isooctane) and B) a polyalkyl (meth)acrylate P2 having crystallisation starting temperatures at or below 15 degrees C, with the proviso that there is a temperature difference of at least 5 degrees C between the start of the crystallisation of the polyalkyl (meth)acrylates P1 and the start of the crystallisation of the polyalkyl (meth)acrylates P2.
Patent DE-3932895-A1 (DE)
Title: Pressurised gas generator - with automatically controlled operation, esp. for electrolytic hydrogen prodn.
Inventor: KRANZ WALTER
IPC: C25B1/12
Filed: 1989-10-02
Abstract: A pressurised gas generator consists of a liq. container communicating with two gas collection containers, each of which has an electrode and a float valve and at least one of which has an operating/excess pressure valve, a separator being located between the electrodes. USE/ADVANTAGE - The generator is used to produce H2 for storage and further energy recovery, as well as O2 e.g. for water aeration, by electrolysis of KOH, NaOH, dil. H2SO4 or even seawater. Its operation is automatically controlled without electrical regulating appts. It is safe and reliable and can be operated by solar cells.
Patent DE-3941897-A1 (DE)
Title: Ultraviolet generating appts. - having medium or high pressure ultraviolet lamp, for ozone and sterilising radiation prodn.
Inventor: WALZ ALFRED PROF DIPL ING DR I
IPC: C02F1/32
Filed: 1989-12-19
Abstract: Appts. is claimed for generating UV radiation of 150-300 nm wavelength (185 nm for ozone prodn. and 260 nm for sterilising radiation prodn.) by electrical energy conversion into radiation energy in low voltage gas discharge tubes, each having electrode pair. The tubes have walls of material with good transparency in the requisite wavelength range and are filled with a conventional gas and mercury vapour mixt. Appts. is used pref. for water purificn. or for carrying out chemical processes requiring ozone, a gas discharge lamp provided in a treatment chamber, fed by a d.c. multiplier circuit from an alternating voltage mains with a switch. The novelty is that the gas discharge lamp is a medium or high pressure UV lamp. ADVANTAGE - Appts. provides increased ozone yields per unit vol. of supplied air without requiring cooled and specially dried air, is compact, and has improved energy bal. with 50% redn. in power losses.
Patent DE-3942206-A1 (DE)
Title: Sensor probe for bore measurement appts. - has different radii of curvatures of measurement surface in bore axial and normal directions
Inventor: HACMANN HARTMUT
IPC: G01B5/12
Filed: 1989-12-21
Abstract: A measurement sensor for a bore measurement device contains a housing which is axially guided into the measurement bore and at leastt two radially movable measurement sensors with spherically curved external surfaces. The radius of curvature (R1) of the surface (6) in the axial plane of the bore (2) is larger than, i.e.  at least double, that in the normal plane of the bore.  The radius of curvature in the axial plane is only slightly smaller than half the characteristic bore dia. ADVANTAGE - Minimises bore dia. measurement errors.
Patent DE-4007784-A1 (DE)
Title: Versatile plastic fastener strip - consists of series of successive triangular holes in elastic polyamide band so that its end can be fed through and locked in any hole
Inventor: BASENER HELMUT
IPC: B65D63/10
Filed: 1990-03-12
Abstract: A fastener to hold articles or materials of all kinds is an elastic strip with a number of successive links in a row, each of which has a hole through which part can be passed so that the edge of a link lies against the i.d. of the hole. At least part of each link has a hole for any other link to rest against. The fastener is preferably made of polyamide. ADVANTAGE - The prod. is an elastic fastening strip which can accommodate large sizes or lengths and, in particular, is universally applicable.
Patent DE-4009352-A1 (DE)
Title: Pigeon-loft ventilation with control of fan speed - governed by two=stage triac circuit with temp.-dependent resistor and photoresistor responsive to oxygen demand
Inventor: BAEUMER RICHARD
IPC: F24F11/00
Filed: 1990-03-23
Abstract: The fan is driven by a motor (8) supplied from 220 V mains (9) via an on/off switch with a monitor lamp (3). The control circuit (2) incorporates a rotary selector (6) of resistance inserted between an adjustable resistor (7) and a series combination of an NTC resistor (4) and a photoresistor (5). The adjustable resistor (7) sets a basic fan speed dependent on the size of the loft, for modification in accordance with the temp. and brightness to which the other resistors (4,5) are respectively responsive. ADVANTAGE - Optimal ventilation guaranteed with adjustments in response to daylight and temp. variations.
Patent DE-4009562-A1 (DE)
Title: Thermostatic valve to control engine temperature - has valve operated by bonder cable coupled to thermostat temperature responsive capsule
Inventor: SAUR ROLAND DIPL ING
IPC: F01P7/16
Filed: 1990-03-28
Abstract: The thermostatically controlled regulator has a capsule (23) that contacts a substance that expands and contracts with temperature. The valve is mounted in a separate housing (15) that has an actuator pin (44) and this is displaced by a cam (26) that rotates about an axis and has a rack and pinion (48,49) input. Movement of the rack is provided by a Bowden cable (17) that has a connection to the output of the temperature  sensitive capsule. Guidance is provided within a housing (25). USE/ADVANTAGE - For cooling system of IC engine. Allows valve remote from actuator to be operated.
Patent DE-4018664-A1 (DE)
Title: Grid refractometer measuring refractive index and/or stabilising - has stable air gap for use as beam splitter for wavelengths of EM radiation in medium
IPC: H01S3/13
Filed: 1990-06-11
Abstract: The refractometer measures the refractive index of a medium and/or stabilises the wavelengths of an e.m. beam in this medium. The refractometric measuring path lies between at least two grids of a multigrid interferometer whose dimensions are independent of the parameters that affect the refractive index of the medium. The changes in wavelegnths arising from variations in the refractive index of the medium are spectrometrically and/or interferometrically measured or regulated such that the wavelength of the beam remains constant. The parallel grid cariers (1,2) define a stable air gap. The phase grids (1a,2a) are transparent. ADVANTAGE - Combination of interferometric with spectrometric beam path of high diffractions order allows high resolution interferometric relative measuring to be coupled spectrometrically on the reference of the vacuum wavelength without needing a vacuum pump.
Patent DE-4024065-A1 (DE)
Inventor: STOLL GERHARD DR
IPC: C07C67/343
Filed: 1990-07-27
Abstract: (2-hydroxyalkyl)-substituted beta-dicarbonyl compounds are produced by reacting beta-dicarbonyl compounds having the formula R<1>-CO-CH2-CO-R<2>, in which R<1> and R<2> represent independently from each other alkyl, cycloalkyl, aryl or alkoxy residues with 1 to 6 carbon atoms, with 1,2-epoxyalkanes having formula (II), in which R<3> represents an alkyl residue with 6 to 24 carbon atoms, in the presence of polyalkylene glycolethers and/or anorganic or organic bases. The beta-dicarbonyl compounds thus produced are useful as starting materials for the production of heterocyclic compounds for the synthesis of dyes, pharmaceuticals and plant protective products.
Patent DE-4026121-A1 (DE)
Title: MOSFET with conductivity modulation - uses Schottky diode as collector resulting in faster turn-off and less danger of latch-up
Inventor: SAKURAI KENYA
IPC: H01L29/47
Filed: 1990-08-17
Abstract: The transistor consists of a high resitivity n-type region (2) which has on one surface a metal electrode forming a Schottky barrier (10) and on the ohter surface a p-type base-region (3). The Base-region has a p(+)type well formed in it (5) inside which n(+) type regions (4) are formed. A gate electrode (7) on top of the gate-oxide layer (6) defines a channel-region (30) between the diffusions (4) and the substrate region (2). An emitter electrode (8) is formed of metal which connects to both the n+-and p(+)-type regions (4,5). A structure with the opposite conductivity types is also claimed. Modifications claimed of this structure are: (1) the addn. of a second, higher doped n-region between the high resistivity region (2) and the Schottky barrier. (2) the addn. of discrete p-type collector regions adjacent to the metal electrode (10). The high resistivity region pref. has a doping level of 10 power 14-5 x 10 power 15 cm (-3). USE/ADVANTAGE - The transistor shows less danger of latch-up because, compared with the current high performance transistors one of the transistor regions, which included the p-type collector region, is formed with the Schottky barrier which features a lower gain. The transistor also switches off faster, in that the electrons left in the n-type region (2) at switch-off is drawn out by the Schottky barrier contact instead of being left to recombine.
Patent DE-4026835-A1 (DE)
Inventor: SCHAEFER ERHARD
IPC: A47J43/28
Filed: 1990-08-24
Abstract: A cooking spoon comprises a paddle part (14) and a stem (20). The paddle part has a central paddle part (18) and an enclosure wire (16) surrounding the paddle part (18). The enclosure wire (16) is softer in terms of deformation than the central part (18). <IMAGE>
Patent DE-4029824-A1 (DE)
Title: Device for mixing liq. with liq. flowing in pipe - has distribution head with outlet openings projecting into pipe, rotated by vanes attached to surface or by motor
Inventor: GEYER STEPHAN
IPC: C02F11/00
Filed: 1990-09-20
Abstract: New device for mixing liq. with a liq. stream flowing in a pipeline consists of a distributor with outlet openings arranged at angular intervals about an axis and opening into the interior of the pipe. The distributor may be in the form of a distribution head which can rotate about its axis. The distributor head is provided with vanes which project from its surface. These vanes may be used in conjunction with the liq. stream to cause the distribution head to rotate, or alternatively the head may be rotated by a motor. USE/ADVANTAGE - For mixing liq. additives with liqs. flowing in a pipe, and esp. for mixing flocculants with sludges which are to be de-watered for example in a filter-press. A highly effective mixing of the additive with the liq. is achieved in the shortest possible length of pipeline. The use of a mixing chamber is avoided.
Patent DE-4031808-A1 (DE)
Title: Hydraulic servo cylinder control - uses array of input valves to alter input flow rates
Inventor: HEIDEMEYER PAULUS DIPL ING
IPC: F16D48/06
Filed: 1990-10-08
Abstract: The hydraulic servo cylinder (35) is regulated via a variety of input pressures provided by an array of parallel input valves and parallel output valves. Each valve is in line with a flow restriction and the overall effect of the valves is to provide a variable input flowrate and hence input pressure for the servo cylinder. Each valve is operated as an on/off type and the degree of control is determined by the number of valves. The combined output of the valves is applied to a first servo cylinder (26) which provides the static pressure for the final servo cylinder. USE/ADVANTAGE - Controlled servo pressure, unaffected by leakage in valves. Clutch operating cylinder.
Patent DE-4032095-A1 (DE)
Title: Electric welding appts. - comprises cube frame to support components in easily-assembled unit
Inventor: DIETERICH HANS
IPC: B23K9/32
Filed: 1990-10-10
Abstract: Appts. has a mains transformer (20) fitted to a mounting plate (14) which lays on the base plate (2). Switches and controls (16,17) are mounted on an intermediate plate (15) fitted within the cube frame (3) on holding flanges (7) at a gap from the base plate (2), secured to upright frame members (4) at right angles to the base plate (2). Holding flanges (7) are pref. secured to the upright members (4) of the frame to lie along each of the frame end faces (8,9) and align them parallel to the base plate (2), at about two-thirds of the height of the upright members (7). Air entry grid (10) is pref. attached to one end side (9), between the upright frame members (4) at the bottom near the base plate (2). Pref. the other frame end face (8) is closed with an opening (11) near the base plate (2) for a fan mounting which can be covered by an air outlet grid, togehter with a water-cooled heat exchanger. Frame (3) is pref. constructed of right-angled angle bars, and the frame is a right-angled cube structure. ADVANTAGE - Separate components of the electric welding appts. are easily made and simply assembled into the whole unit within the housing.
Patent DE-4035412-A1 (DE)
Inventor: KROENING MICHAEL PROF DR RER N
IPC: G01N23/18
Filed: 1990-11-07
Abstract: The process and device serve to measure a change in wall thickness, especially the reduction (124) in the wall thickness on the inner surface (6) of a pipe (2), from the outside. To this end a radioactive coating (10), preferably in the form of a gamma radiator, is applied to the inner surface (6). Such a coating (10) is automatically found in nuclear components of the primary circuit of a nuclear power station. In order to discover the location (xo) of the reduction in wall thickness (14), the radiation flux density (I) is measured dependently of the location (x) along the object (2) being tested. Then the radiation flux density (I) is measured at said location (xo) on the outer surface (4) in relation to the energy (E); a curve is obtained with a photo-peak (P) and Compton peaks (C). Finally a predetermined relation (V1, V2) is formed between a characteristic value of the photo-peak (P) and the Compton peak (C). By the use of calibration curves (V1*, V2*) it is possible to determine the depth (t) of wall thinning (14). It is thus possible to detect quantitatively not only internal cracks but also wall thickening. A similar process may also be performed by measuring the photo-peaks of two different nuclides.
Patent DE-4040237-A1 (DE)
Title: Processing plant for steel sections - has rolling path with alignment stops and rise and fall slide strips
Inventor: STURSBERG BERND
IPC: B65G47/244
Filed: 1990-12-15
Abstract: The processing plant for steel sections has a receiving station, transfer station and cross conveyor which is attached on one side to the station conveyor of the receiving station and on the other side to the station conveyor of the transfer station. This cross conveyor has on the station side roller paths (7). The roller path (7) of the transfer station (3) has alignment strips (11) in the area of the tractor chain cross conveyor (8) entering the roller path so that the steel sections (S) roll over same as they enter. The roller path between the rollers (12) has rise and fall slide strips (13) which can be set at a level above and below the transport level of the rollers. The tractor chain cross-conveyors (8) which can be moved back against the transport direction of the workpiece have alignment entrainment members (14) on the tractor chains (8) and these members can be rasied into the function position and lowered into the transfer position by rise and fall lift strips (15) associated with the tractor chain conveyors (8) in the area between the rollers (12). USE/ADVANTAGE - The workpieces can be positioned with precision on the roller path of the transfer station, even at high speeds.
Patent DE-4041698-A1 (DE)
Title: Hair drier air flow brush - has cap in downstream end section providing several switching functions for its drive
Inventor: LANGE PETER
IPC: A46B15/00
Filed: 1990-12-24
Abstract: In the downstream end section the brush (4) carries an adjusting cap (35), providing two switching functions, whereby in one switching position the brush can be released for a rotary motion, and in the other switching position the brush (4) can be withdrawn from its housing (3). At the end side the brush has a support extending into the housing, which allows rotation and by an arresting spring (39) axially secured in the housing. USE/ADVANTAGE - For hair driers etc., with simple (de)locking by a simple member for effective air flow through the brush.
Patent DE-4041720-A1 (DE)
Title: In-dwelling vein-infusion needle - has part entering body of oligo:dynamic metal, discharging ions on contact with fluids preventing infection
Inventor: FELDMANN MICHAEL DR MED
IPC: A61L29/16
Filed: 1990-12-24
Abstract: The indwelling needle for infusion, blood extraction etc. into or from a vein comprises a tube connected to a chamber, and a metal puncturing needle extensible through and beyond the tube and having a head by which it is extracted. The front part of the tube penetrating into the body is of oligodynamic metal discharging metal ions on contact with fluids, or of an equivalent metal alloy or high-grade steel. The other parts of the tube are of flexible material, typically plastic. Copper, silver or gold can be used for the front part, or alternatively supporting material coated with oligodynamic metal. ADVANTAGE - No infection from sickness-generating bacteria.
Patent DE-4105186-A1 (DE)
Title: Holder component for plate-shaped constructional element - comprises two parallel walls with one fixed to rear side of element and the other having at least one edge-open slot
Inventor: BOEGLE ULRICH
IPC: E04F13/08
Filed: 1991-02-20
Abstract: The holder component (10) comprises first (12) and second (14) walls which are bent running parallel to one another. Between the two walls are connecting bridges (15, 16). Out of the first wall, a stop web (17) is bent around a bending axis which ends in two claws (18) standing proud to one side and in an eyelet (19) with a through aperture (20). In the second wall (14) are formed two aligned slots (21) parallel to the bending axis and to the stop web (17) which have a funnel opening towards an outer edge (23) of the wall. In the area of this funnel opening, the first wall (12) has a projecting edge tongue (25, 25'), and at the height of the slots (21) knob-type arrest projections (26) are provided in the first wall. ADVANTAGE - A holder component which permits a subsequent loosening of a constructional element which it retains out of a series of such elements.
Patent DE-4106744-A1 (DE)
Title: Optical fibre radiation characteristic varying device - uses transparent ball or droplet at optical fibre light incident or emergent face
Inventor: MUELLER WALTER DR
IPC: A61B90/30
Filed: 1991-03-02
Abstract: The transparent ball or droplet may be made of glass or plastics material and has a planar surface corresp. in size to the size of the optical fibre light entry or exit face and is adhered to the latter via a duroplastic cement. One or other surface of the ball or droplet may have a matt finish. USE - Road or rail signalling lamp or for medical illumination device.
Patent DE-4108772-A1 (DE)
Inventor: PLANCK HEINRICH DIPL ING DR
IPC: A61F2/02
Filed: 1991-03-18
Abstract: The invention relates to a bio-hybrid hollow organ having chambers (2) with porous chamber walls for reception of organelles (3). The bio-hybrid hollow organ is structurally designed such that it can be arranged in the region of a wall (1) in a conductor track of the receiver or replaces a corresponding wall section. The walls of the chambers (2) directed toward the interior of the conductor track are designed as porous membranes which permit material transfer by diffusion in a liquid flowing in the conductor track or vice versa. The hollow organ is preferably designed as a vascular prosthesis. <IMAGE>
Patent DE-4114072-A1 (DE)
Inventor: LENGENFELDER HANS DIPL ING
IPC: G08C25/00
Filed: 1991-04-30
Abstract: In this method, a delayed periodic squarewave signal (B) is formed by a delay unit (V) from a useful electrical value in the form of a periodic squarewave signal (A) into which two electrical disturbance signals in the form of noise pulses (F1, F2) are coupled. From the periodic squarewave signal (A) and the delayed periodic squarewave signal (B), a disturbance-free periodic squarewave signal (A') is obtained by means of a logic unit (N1-N3, O). <IMAGE>
Patent DE-4124568-A1 (DE)
Inventor: GREBER HANS GEORG
IPC: B65G47/40
Filed: 1991-07-24
Abstract: An unloading station for a gravity bucket conveyor, in which gravity buckets (10) are suspended on at least one tie rod (12) so as to be rotatable about a horizontal axis (11) above their centre of gravity, comprises a lever (17) which is mounted so as to be rotatable but fixed on its mount and which has a pin (19) arranged at a distance from the axis of rotation (18) of the lever. In order to even out the angular acceleration of the gravity bucket (10) during tipping, the pin (19) can be made to engage with a claw (21) provided on the gravity bucket (10). <IMAGE>
Patent DE-4124674-A1 (DE)
Title: Conservation of solar generated heat - heated air circulation to store sun's energy in building fabric until required
Inventor: KOCH WILHELM CHR DIPL ING
IPC: E04B1/74
Filed: 1991-07-25
Abstract: Air heated between an external sheet of glass (8) and an internal wall (7) in space (9) is induced by a fan (12) through a subfloor channel (10) to the northern side of the building. An air return duct (14) leads the air back the heating space (9). Heat energy can be stored in various materials within or adjacent to the circulation ducts. USE/ADVANTAGE - Simple method of storing radiated energy for later use as a heating source.
Patent DE-4127788-A1 (DE)
Title: Folder for storing sheets containing information - has four wallets to store separate sheets and can be folded to compact size
IPC: G09B29/00
Filed: 1991-08-22
Abstract: The folder is for storing sheets containing information for use in organisation and planning. It consists of a main panel (50) of rectangular form which can be folded along three pairs of parallel fold lines (22, 24) (26, 28) (30, 32) to form a compact folder. The fold lines divide the main panel (50) into four rectangles each of which is provided with a wallet (60, 62, 68). Each wallet can be used to store a set of papers connected with a given subject. In addition each wallet has an oblique slot in its outer wall which can be used to hold a smaller sheet of paper. USE/ADVANTAGE - Folder for storing sheets of paper in positions which are easily visible.